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Materials 2010, 3(2), 1186-1202; https://doi.org/10.3390/ma3021186

The One-Step Pickering Emulsion Polymerization Route for Synthesizing Organic-Inorganic Nanocomposite Particles

Chemical Engineering, Arizona State University, Tempe, AZ 85287, USA
Current Address: Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.
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Received: 5 January 2010 / Revised: 9 February 2010 / Accepted: 9 February 2010 / Published: 16 February 2010
(This article belongs to the Special Issue Nanocomposites of Polymers and Inorganic Particles)
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Abstract

Polystyrene-silica core-shell nanocomposite particles are successfully prepared via one-step Pickering emulsion polymerization. Possible mechanisms of Pickering emulsion polymerization are addressed in the synthesis of polystyrene-silica nanocomposite particles using 2,2-azobis(2-methyl-N-(2-hydroxyethyl)propionamide (VA-086) and potassium persulfate (KPS) as the initiator. Motivated by potential applications of “smart” composite particles in controlled drug delivery, the one-step Pickering emulsion polymerization route is further applied to synthesize polystyrene/poly(N-isopropylacrylamide) (PNIPAAm)-silica core-shell nanoparticles with N-isopropylacrylamide incorporated into the core as a co-monomer. The polystyrene/PNIPAAm-silica composite nanoparticles are temperature sensitive and can be taken up by human prostate cancer (PC3-PSMA) cells. View Full-Text
Keywords: Pickering emulsion polymerization; nanocomposite particles; temperature sensitivity Pickering emulsion polymerization; nanocomposite particles; temperature sensitivity
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Ma, H.; Luo, M.; Sanyal, S.; Rege, K.; Dai, L.L. The One-Step Pickering Emulsion Polymerization Route for Synthesizing Organic-Inorganic Nanocomposite Particles. Materials 2010, 3, 1186-1202.

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